Widgets Rotation

MGH · March 15, 2023, 9:10am

What do you want to achieve?

Roatate widgets with 16 bir (RGB565 Color format)

What have you tried so far?

based on the LVGL Docs it needs ARGB (32 bit) Color format but my lcd doesn’t support 32 bit Color format

Screenshot or video

Others

SquareLine Studio version: Version: ver. 1.2.1
Operating system:
Target hardware: stm32f769igt6, ILI9806e Based Driver

kisvegabor · March 17, 2023, 1:13pm

Since LVGL v8.3 you can use LV_COLOR_SCREEN_TRANSP with an color depth.

github.com

lvgl/lvgl/blob/release/v8.3/lv_conf_template.h#L32-L35


      
          /*Enable features to draw on transparent background.
           *It's required if opa, and transform_* style properties are used.
           *Can be also used if the UI is above another layer, e.g. an OSD menu or video player.*/
          #define LV_COLOR_SCREEN_TRANSP 0

Once you have enabled LV_COLOR_SCREEN_TRANSP you can use lv_obj_set_style_transform_angle() on any widget.